1. Uvod
Thank you for choosing the SONRU Bluetooth 5.0 Audio Transmitter and Receiver. This device is designed to seamlessly integrate Bluetooth audio capabilities into your existing home entertainment systems, car audio, or personal listening devices. It functions as both a transmitter (TX) to send audio from non-Bluetooth sources to Bluetooth headphones/speakers, and a receiver (RX) to stream audio from Bluetooth-enabled devices to wired speakers or car stereos. Please read this manual carefully to ensure proper use and optimal performance.

2. Sadržaj paketa
Molimo Vas da provjerite paket za sljedeće stavke:
- SONRU Bluetooth Audio Adapter (B50)
- Uputstvo za upotrebu
- Optical Audio Cable (TOSLINK SPDIF)
- 3.5 mm AUX audio kabel
- RCA Audio Cable (3.5mm to 2RCA)
- USB kabl za punjenje

3. Proizvod je gotovview
3.1 Raspored i kontrole uređaja
Familiarize yourself with the buttons and ports on your SONRU B50 adapter:

- Prekidač: ON/OFF
- Prekidač za TX/RX režim: Toggle between Transmitter and Receiver modes.
- LED indikator: Displays current status, mode, and codec.
- Gumb za uparivanje: Pokreće Bluetooth uparivanje.
- Dugmad za kontrolu jačine zvuka/numere: Adjust volume, skip tracks (RX mode only for volume control).
- Dugme za reprodukciju/pauzu: Kontrolira reprodukciju medija.
- AUX Port (3.5mm): For 3.5mm audio input/output.
- SPDIF Port (Optical): For optical audio input/output.
- USB priključak za punjenje: Za punjenje uređaja.
4. Podešavanje
4.1 Punjenje uređaja
Before first use, fully charge the adapter. Connect the supplied USB charging cable to the device's USB port and to a standard USB power adapter (not included) or a computer's USB port.
- LED indikator će pokazati status punjenja.
- Potpuno punjenje traje otprilike 3 sati.
- Uređaj se može koristiti tokom punjenja.
4.2 Uključivanje/isključivanje napajanja
- Za uključivanje: Slide the power switch to the 'ON' position. The LED indicator will light up.
- Za isključivanje: Slide the power switch to the 'OFF' position. The LED indicator will turn off.
4.3 Odabir načina rada (TX/RX)
Use the TX/RX mode switch on the side of the device to select the desired operating mode:
- TX (odašiljački) način rada: To send audio from a non-Bluetooth device (e.g., TV, PC) to Bluetooth headphones or speakers.
- RX (prijemnik) način rada: To receive audio from a Bluetooth-enabled device (e.g., smartphone, tablet) and output it to wired speakers or a car stereo.
5. Uputstvo za upotrebu
5.1 Režim predajnika (TX)
In TX mode, the adapter transmits audio from a non-Bluetooth source to Bluetooth receiving devices.
- Postavite prekidač načina rada na TX.
- Connect the adapter to your audio source (e.g., TV, PC, projector) using the appropriate cable (Optical, 3.5mm AUX, or RCA).
- Power on the adapter. The LED indicator will flash, indicating it's in pairing mode.
- Postavite Bluetooth slušalice ili zvučnik u način rada za uparivanje.
- The adapter will automatically search for and connect to nearby Bluetooth devices. Once connected, the LED indicator will show a solid light.

5.2 Režim prijemnika (RX)
In RX mode, the adapter receives audio from a Bluetooth-enabled device and outputs it to a wired audio system.
- Postavite prekidač načina rada na RX.
- Connect the adapter to your wired audio system (e.g., speakers, car stereo) using the appropriate cable (3.5mm AUX or RCA).
- Power on the adapter. The LED indicator will flash, indicating it's in pairing mode.
- On your Bluetooth-enabled device (e.g., smartphone), search for Bluetooth devices and select "SONRU B50" to connect.
- Once connected, the LED indicator will show a solid light. You can now stream audio from your device to your wired audio system.
5.3 Uparivanje uređaja
Single Device Pairing
Follow the steps above for TX or RX mode. The adapter will automatically enter pairing mode when powered on in the selected mode.
Dvostruko uparivanje uređaja
The SONRU B50 supports connecting to two Bluetooth devices simultaneously in both TX and RX modes.
- Connect the first device as described in the TX or RX mode instructions.
- Once the first device is successfully paired, press the pairing button on the adapter. The LED will flash again.
- Stavite drugi Bluetooth uređaj u način rada za uparivanje.
- The adapter will connect to the second device. Both devices will now be connected simultaneously.

5.4 LED indikatori
The LED display provides visual feedback on the device's status:
- TX/RX: Označava trenutni način rada.
- Uparivanje: Flashing light indicates pairing mode; solid light indicates successful connection.
- OPT/AUX: Indicates the active audio input/output interface (Optical or 3.5mm AUX).
- SBC/AAC/APTX/LL/HD: Indicates the active audio codec being used.
5.5 Funkcije dugmadi
The adapter features intuitive controls for media playback and volume adjustment:
- Dugme za reprodukciju/pauzu: Pritisnite za reprodukciju ili pauziranje zvuka.
- Dugme za pojačavanje zvuka/sljedeću pjesmu: Short press for next track; long press for volume up (RX mode only for volume control).
- Dugme za smanjenje jačine zvuka/prethodnu pjesmu: Short press for previous track; long press for volume down (RX mode only for volume control).
6. Održavanje
To ensure the longevity and optimal performance of your SONRU B50 adapter, follow these maintenance guidelines:
- čišćenje: Obrišite uređaj mekom, suhom krpom. Ne koristite tekuća sredstva za čišćenje ili abrazivne materijale.
- Skladištenje: Uređaj čuvajte na hladnom i suhom mjestu, dalje od direktne sunčeve svjetlosti i ekstremnih temperatura.
- Održavanje baterije: For optimal battery life, avoid fully discharging the battery frequently. If storing for an extended period, charge the device to about 50% every few months.
- Izbjegavajte vlagu: Držite uređaj dalje od vode i visoke vlažnosti.
7. Otkrivanje problema
If you encounter issues with your SONRU B50 adapter, refer to the following common problems and solutions:
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Uređaj se ne uključuje. | Slaba baterija ili je prekidač za napajanje isključen. | Charge the device using the USB cable. Ensure the power switch is in the 'ON' position. |
| Nije moguće uparivanje s Bluetooth uređajem. | Device not in pairing mode, too far from the adapter, or interference. | Ensure the adapter is in TX/RX pairing mode (LED flashing). Place devices closer. Turn off other Bluetooth devices nearby. Restart both devices. |
| Nema zvuka nakon uparivanja. | Incorrect cable connection, wrong input/output selected, or volume too low. | Verify all audio cables are securely connected. Ensure the correct input/output (Optical/AUX) is selected on the adapter and source/destination device. Adjust volume on both the adapter (RX mode) and connected devices. |
| Kašnjenje zvuka (latencija). | Connected devices do not support aptX Low Latency. | For minimal latency, ensure both the adapter and your Bluetooth headphones/speakers support aptX Low Latency. |
| Kratki bežični domet. | Obstacles or interference. | Ensure there are no major obstacles (walls, metal objects) between the adapter and the connected device. Avoid placing near Wi-Fi routers or other wireless devices. |
8. Specifikacije
| Brand | SONRU |
| Broj modela | B50 |
| Bluetooth verzija | 5.0 |
| Audio kodeci | aptX HD, aptX Low Latency (LL), SBC, AAC |
| Radni režimi | Predajnik (TX), Prijemnik (RX) |
| Interfejsi za povezivanje | Bluetooth, Optical (SPDIF), 3.5mm AUX, RCA |
| bežični domet | Do 20 metara (bez prepreka) |
| Vrsta baterije | Litijum-jonski |
| Kapacitet baterije | 600mAh |
| Vrijeme igranja | Do 24 sati |
| Vrijeme punjenja | Približno 3 sata |
| Izvor napajanja | Rechargeable Battery, USB Powered |
| Boja | Crna |
| Kompatibilni uređaji | Computers, TVs, Projectors, Audio Systems, Headphones, Mobile Phones, Tablets, Car Stereos |
9. Garancija i podrška
For warranty information and technical support, please refer to the documentation provided with your purchase or contact SONRU customer service through the retailer where the product was purchased. Keep your proof of purchase for warranty claims.